Approval has been granted — with significant conditions attached — for a large-scale standalone battery storage project designed to help the Hawaiian island of Oahu overcome energy reliability and supply concerns as a coal power plant retires.

An off-grid hybrid energy system at Fekola, a gold mine in Mali, Africa, has gone online incorporating solar PV, battery storage and the site’s existing fossil fuel generators, project partners Baywa R.E and Suntrace have said.